{ "id": "1506.02463", "version": "v1", "published": "2015-06-08T12:31:00.000Z", "updated": "2015-06-08T12:31:00.000Z", "title": "The dielectric genome of van der Waals heterostructures", "authors": [ "Kirsten Andersen", "Simone Latini", "Kristian S. Thygesen" ], "comment": "To be published in Nano Lett", "categories": [ "cond-mat.mes-hall" ], "abstract": "Vertical stacking of two-dimensional (2D) crystals, such as graphene and hexagonal boron nitride, has recently lead to a new class of materials known as van der Waals heterostructures (vdWHs) with unique and highly tunable electronic properties. Abinitio calculations should in principle provide a powerful tool for modeling and guiding the design of vdWHs, but in their traditional, form such calculations are only feasible for commensurable structures with a few layers. Here we show that the dielectric properties of realistic, incommensurable vdWHs comprising hundreds of layers can be calculated with ab-initio accuracy using a multi-scale approach where the dielectric functions of the individual layers (the dielectric building blocks) are coupled simply via their long-range Coulomb interaction. We use the method to illustrate the 2D- 3D dielectric transition in multi-layer MoS2 crystals, the hybridization of quantum plasmons in large graphene/hBN heterostructures, and to demonstrate the intricate effect of substrate screening on the non-Rydberg exciton series in supported WS2.", "revisions": [ { "version": "v1", "updated": "2015-06-08T12:31:00.000Z" } ], "analyses": { "keywords": [ "van der waals heterostructures", "dielectric genome", "hexagonal boron nitride", "long-range coulomb interaction", "3d dielectric transition" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }